jwcarlson Posted April 10 Share Posted April 10 (edited) I'll preface this by saying that I don't have pictures right now. But I can get some later. I've never noticed a large difference in bladder snail sizes until I started using RO water to cut my tap drastically and lower the pH. My standard tap water is 8.2 pH, GH and KH are something like ~20 degrees each. All of my fish have lived in this water as well as the snails I have. When I started setting up apisto tanks, the snails went from maxing out in size at MAYBE 1/4" and being pretty markedly 'bigger' at that size compared to the others in the tank. Like "oh, that's a pretty big one!" Now, in my apisto tanks it's not uncommon AT ALL to see a bladder snail at 3/8" and I'd bet there are a couple even bigger than that. They are HUGE compared to the "big ones" in my standard tap water tanks. Apisto water is around 7.4 pH, KH of ~2, GH ~4. 77 degrees, but community tanks and CPDs are 75. Discus is 85. Has anyone noticed this difference? I initially thought maybe it was predation of larger snails, not nothing really kills them in my discus tank or in the community tank with a bunch of tetras and corys. This size difference also occurs in my QT and CPD tanks where it's straight normal tap water and in the QT tank, no fish at all most of the time. I also use it to hold plants and when I QT fish I usually take all the plants out and put them in a bucket (including any snails in the tank). Then when QT is done they end up back in there. They also appear to grow faster and die sooner? Or at least I notice death more in the apisto tanks. (seeing the empty shells). Are their shells maybe thinner from less calcium and so they grow bigger/faster? I'll try to get a side-by-side with a "big" one from QT or CPD tank and a big one from the Apisto tank. Edited April 10 by jwcarlson 1 Link to comment Share on other sites More sharing options...
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